Summary
The remote host is missing an update to the system as announced in the referenced advisory.
Solution
Update your system with the appropriate patches or software upgrades.
http://drupal.org/files/sa-2006-026/advisory.txt
http://drupal.org/drupal-4.7.4
http://www.vuxml.org/freebsd/19207592-5f17-11db-ae08-0008743bf21a.html
Insight
The following package is affected: drupal
